Flour-packer



(No Model.) QSheets-Sheet 1. H. A. BARNARD & J. S. LEAS.

. FLOUR PAGKER.

Patented Apr. 4.1882.

WITNESSES bar w HIIFQ" D c t 2Sheets Sheet2 H. A. BARNARD 82: J- S. LEAS.

Patented Apr. 4,1882.

[UNITE STATES PATENT OFFICE.

HEMAN A. BARNARD, OF MOLINE, AND J. SILAS LEAS, OF ROCK ISLAND, ASSIGNORS TO THE BARNARD & LEAS MANUFACTURING COMPANY, OF

MOLINE, ILLINOIS.

FLdUR-PAC'KER.

SPECIFICATION forming part of Letters Patent No. 256,096, dated April 4, 1882.

Application filed January 4, 1882. (No model.)

hereby declare that the following is a full,

clear, and exact description thereof, reference being bad to the accompanying drawings, and

no to the letters of reference marked thereon,

which form part of this specification.

This invention relates to certain improvements in flour-packers; and it has for its objects to provide certain means for reducing 1 the friction of the movable platform by causing the same to move upon friction-rollers instead of in friction-grooves, whereby the cost of construction is lessened and the liability to breakage of the chains obviated to a great extent; also, to secure an equal and uniform strain upon every part of the chain, whereby the liability to breakage is further obviated and increased durability is obtained; and, further, to provide certain means whereby,when

the barrel is filled, the platform will be caused to descend automatically below the stationary packing-tube, thus saving time and labor in removing the barrel from the packer, and thereby increasing the capacityof thc'packer.

0 These objects we attain by the apparatus and mechanism illustrated in the accompanying drawings, in which- Figure 1 represents a perspective view of our invention. Fig. 2 is a side elevation of 5 the same, and Fig. 3 a detail perspective of part of the same.

The letter A indicates two uprights, which form the guides for the movable platform B and the supports for the feed mechanism and packing mechanism, as usual. The movable platform B consists of a horizontal table, b, secured to a vertical frame, I), the latter being located and adapted to travel vertically between the uprights A. The said table and frame 4 5 are strengthened by suitable brace-rods, 11

The letter C indicates two friction rollers, mounted on journals a, secured to brackets 0, attached on opposite sides to the lower front portion of the frame I), the said friction-rollers bearing upon the front surfaces of the uprights A.

The letter D indicates two similar frictionrollers, mounted upon a common shaft, d,journaled in brackets d, secured to the upper corners at the rear of the frame I). These brackets project a sutfieient distance to the rear of the uprights A to permit the said friction-wheels D to bear upon the rear faces of said uprights. The uprights, on thcirinner sides, are provided with vertical grooves E, into which extend the edges of the brackets d, as indicated by the letter (1 the said brackets projecting laterally beyond the sides of the frame b for the purpose. By this means the frame 1) is confined between the rollers and at the same time permitted to move vertically.

To the upper partof the frame I) are secured two standards, F, carrying grooved pulleys G, around which pass a chain, H, the ends of which are secured to the cone-pulleys I,

mounted upon a transverse shaft, K, above, journaled in suitable bearings in the uprights A.

The chain H may be secured to the transverseshaft K direct by means of set-screws," and the cone-pulleys I may be dispensed with; or cylindrical pulleys may be employed instead of the cone-pulleys. To one end of the said shaft is secured a friction-pulley, L, the other end carrying a grooved pulley, M,\vl1ich is provided with a chain,N,havinga weightorcoun- 8o terpoise, I, attached to it.

The letter R indicates a metallic strap secured at one end to a bracket, S, attached to one'ot' the uprights A. The other end of said strap is provided with a link, 1", which is adjustubly secured to a lever, T, fulcrumed at t to the bracket S, the said strap passing over the pulley L, so as to bind or release it, according to the position of the said lever T. The long arm of the said lever T is provided 0 with a counter-balance; U, and the short arm is connected by a fiat bar, V, with a bent lever, W, f ulcrumed to a bracket, Y, secured to one of the uprights A, the free end of said lever extending transversely partially across the rear of the apparatus.

.COZISQS.

The letter Z indicates a bracket secured to the rear of one of the uprights A, the said bracket being providedwith an inclined face, against which the lower end ofthe barV works, as fully hereinafter described.

A indicates a trip secured to the upper cross-bar of the frame I). The said trip extends directly to the rear of the frame b a sufficient distance to engage the lever W, and is beveled on its upper edge, so as to pass said lever at the proper time, as hereinafter specified.

The operation of our invention is as follows: The platform, with the barrelin place upon it, is elevated until the auger on the packingsha-ft B is at the bottom of the barrel and the stationary packing-tube properly inserted in the barrel. The flour is then fed in and packed in the usual manner. As the iiour is packed in, the barrel and platform descend by the pressure caused by the auger until the barrel is filled, or nearly filled, when such pressure At this moment, however, the lever WV has been depressed by the trip A, depressing the short arm of the lever T sufficient to loosen the strap 1% from the friction-pulley L, so that it ceases to bind upon the same. The friction upon the wheel being thus relieved, the weight of the barrel, overcoming that of the eounterpoise, carries the platform down, removing the barrel from the mouth of the packing-tube. As the lever \V is carried down the lower end of the lever WV clears the trip A, when the levers assume their normal position, and the strap, being again caused to bind upon the friction-pulley, stops the further descent of the platform and barrel, leaving the barrel ready to be removed. As the trip A commences to move or depress the lever T before the pressure ceases, and the pressure ceases when it is depressed low enough, it is evident that the mechanism to stop the pressxamur-e and the mechanism to drop the barrel 1. In a flour-packer, a movable platform arranged to travel upon friction-rollers, substantially as specified.

2. The combination, with the uprights of a flour-packer and the movable platform, of the friction-rollers arranged in front and at the rear of said platform and adapted to travel vertically upon the uprights, substantially as specified.

3. In combination with the movable platform of a flour-packer, the grooved pulleys mounted on said platform, the chain passing around the same, the cone-pulleys to which the ends of said chain are attached, and the shaft upon which said cone-pulleys are mounted, the whole arranged to operate substantially as set forth.

4. In combination with the movable platform, the grooved pulleys, the chain and cone pulleys, and the shaft provided with a counterbalance-pulley and a friction-pulley, and mechanism, 'as described, for automatically operating the friction-pulley, substantially as specified.

5. In a flour-packer, a movable platform and mechanism, as described, for automatically lowering the barrel away from the stationary packing-tube, substantially as specified.

6. In combination with the movable platform and the mechanism for elevating and lowering the same, thefriction-pulley and its strap, the weighted lever and bar connecting the same with the .bent lever, the bracket having an inclined face, and the trip for moving the bent lever, the whole arranged to operate to automatically lower the barrel when packed, substantially as specified.

7. In combination with the movable platform of a flour-packer, the grooved pulleys mounted on said platform, the chain passing around the same, and the shaft, the whole arranged to operate substantially as set forth.

In testimony that we claim the foregoing as our own we affix our signatures in presence of two witnesses.

HEMAN A. BARNARD. J. SILAS LEAS.

Witnesses:

J. S. GILLMoRE, F. H. HEAD. 

